Dana enjoys taking her dog for a walk, but sometimes her dog gets away and she has to run after him. dana walked her dog for 7 miles but then had to run for 1 mile, spending a total time of 2.5 hours with her dog. her running speed was 3 mph faster than her walking speed. find her walking speed.

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)

Bocephus has a bag full of nickels and dimes. if there are 3 times as many dimes as nickels, and he has $\$36.05$ in his bag, how many nickels does he have?

How do i i solve this equation? -18 = x/3 + 3